/*
 * passaddr1.c - passing a variable's value to a function with pointers
 */
#include <stdio.h>

void testfunc(int *);

int main(void)
{
  int aa;
  aa=5;
  
  printf("Before calling testfunc(), aa is: %d\n", aa);

  testfunc(&aa);
  
  printf("After calling testfunc(), aa is: %d\n", aa);

  return 0;
}

void testfunc(int * pbb)
{
  *pbb+=1;
  printf("In testfunc(), after incrementing, aa is: %d\n", *pbb);
}